They belong to different categories primarily because they are targetted at different audiences with different concerns. Therefore they are better at different things. Apache Thrift similar to Google Protocol Buffers is intended to be high-level, reasonably well abstracted means to send data between processes on different machines, possibly in different languages. They purposefully provide an … Read more
To compare two C strings (char *), use strcmp(). The function returns 0 when the strings are equal, so you would need to use this in your code: if (strcmp(namet2, nameIt2) != 0) If you (wrongly) use if (namet2 != nameIt2) you are comparing the pointers (addresses) of both strings, which are unequal when you … Read more
There is no clean way to solve this with switch, as cases need to be integral types. Have a look at if-else if-else.
Ordered comparison between a pointer and an integer is ill-formed in C++ (even when the integer is a null pointer constant such as it is in this case). The risk is that compilers are allowed to, and do, refuse to compile such code. You can rewrite it as either of these: if(myPtr != nullptr) if(myPtr)
It’s a mechanism to avoid mistakes like this: if ( var = NULL ) { // … } If you write it with the variable name on the right hand side the compiler will be able catch certain mistakes: if ( NULL = var ) { // not legal, won’t compile // … } Of … Read more
toFixed returns a string, and you are comparing the two resulting strings. Lexically, the 1 in 12 comes before the 7 so 12 < 7. I guess you want to compare something like: (Math.round(parseFloat(acVal)*100)/100) which rounds to two decimals
From O’Reilly: One marked difference between the System V and POSIX semaphore implementations is that in System V you can control how much the semaphore count can be increased or decreased; whereas in POSIX, the semaphore count is increased and decreased by 1. POSIX semaphores do not allow manipulation of semaphore permissions, whereas System V … Read more
You can use StringUtils.difference(String first, String second). This is how they implemented it: public static String difference(String str1, String str2) { if (str1 == null) { return str2; } if (str2 == null) { return str1; } int at = indexOfDifference(str1, str2); if (at == INDEX_NOT_FOUND) { return EMPTY; } return str2.substring(at); } public static … Read more
#result == T(fully.qualified.path.to.AnEnum).A_VALUE Reference here: You can use the special T operator to specify an instance of java.lang.Class (the type).
The only storage size difference is the number of bytes allocated for the “how many bytes is this field” number. From the fine manual: TINYTEXT L + 1 bytes, where L < 2^8 TEXT L + 2 bytes, where L < 2^16 MEDIUMTEXT L + 3 bytes, where L < 2^24 LONGTEXT L + 4 … Read more